Chemistry
Grade-9
Easy
Question
What is a halogen that is solid at room temperature?
- Cl
- Br
- F
- I
Hint:
Iodine has strong vanderwaal forces of attraction.
The correct answer is: I
- Down the group atomic mass increases and vanderwaal forces increases.
- Fluorine, chlorine, bromine is gas in nature.
- Iodine is solid at room temperature, the molecules of iodine are held together by strong vanderwaal forces of attraction which cannot be broken at room temperature.
Related Questions to study
Chemistry
The true statement among the following is:
The true statement among the following is:
ChemistryGrade-9
Chemistry
When Be is converted into Be2+ it shows the configuration of which noble gas?
When Be is converted into Be2+ it shows the configuration of which noble gas?
ChemistryGrade-9
Chemistry
Which of these is not a property of Noble Gases?
Which of these is not a property of Noble Gases?
ChemistryGrade-9
Chemistry
How many electrons do the Halogens all have in their outer shells?
How many electrons do the Halogens all have in their outer shells?
ChemistryGrade-9
Chemistry
Alkaline earth Metals conduct heat and electricity.
Alkaline earth Metals conduct heat and electricity.
ChemistryGrade-9
Chemistry
Alkali Metals are brittle.
Alkali Metals are brittle.
ChemistryGrade-9
Chemistry
Alkaline earth metals are fairly reactive metals because they only have 2 valence electrons.
Alkaline earth metals are fairly reactive metals because they only have 2 valence electrons.
ChemistryGrade-9
Chemistry
Alkaline earth metals are very dense compared to alkali metals.
Alkaline earth metals are very dense compared to alkali metals.
ChemistryGrade-9
Chemistry
All elements in the same group have the same number of ___.
All elements in the same group have the same number of ___.
ChemistryGrade-9
Chemistry
What colour does Ba's flame typically have?
What colour does Ba's flame typically have?
ChemistryGrade-9
Chemistry
Which Group 1 elements exhibit a lilac flame colour?
Which Group 1 elements exhibit a lilac flame colour?
ChemistryGrade-9
Chemistry
What is the symbol for magnesium ?
What is the symbol for magnesium ?
ChemistryGrade-9
Chemistry
Ca is the symbol for:
Ca is the symbol for:
ChemistryGrade-9
Chemistry
Be is the symbol for:
Be is the symbol for:
ChemistryGrade-9
Chemistry
Which are the alkaline earth metals?
Which are the alkaline earth metals?
ChemistryGrade-9
